Resistance Inspection

WARNING: This page is about a different car, the 2004 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.

Turn the ignition switch to the LOCK position.
Disconnect the negative battery cable.
Remove the extension manifold. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
Disconnect the fuel injector connector.
Measure the resistance between terminals A and B of the fuel injector using a tester.
- If within the specification, perform out the "Circuit Open/Short Inspection".
- If not within the specification, replace the fuel injector.
  
  Fig 1: Identifying Fuel Injector Connector Terminals
  Courtesy of MAZDA MOTORS CORP.
  
  Resistance
  
  Approx. 13.8 ohms [20 °C {68 °F}]